[asterisk-users] portech MV-378 SIP GSM Gateway

[robert boardman]

Hi All

I having an intermittent problem with the above mobile gateway and would
appriciate some advice

basically 1 in 10 calls fail at some point during the call, the duration of
the calls ate completely different

call progression

Call comes in from Zap channel and dials a mobile number on the prtech
gateway

and it dials out on sip trunk 103, the call progresses ok and after a time
the call goes silent without any warning

any advice would be greatly appriciated

Regards

Robb
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